Polishing device for steel pipe manufacturing and machining

By combining a micro motor and an automatic clamping structure, the problems of cumbersome operation and uneven clamping in existing steel pipe grinding devices with fixed positions are solved, achieving efficient and precise steel pipe grinding and improving production efficiency and safety.

CN224209588UActive Publication Date: 2026-05-08JIANGSU KAITAI STEEL PIPE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU KAITAI STEEL PIPE CO LTD
Filing Date
2025-06-09
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

The grinding mechanism of existing steel pipe manufacturing and processing grinding devices is fixed in position, which makes operation cumbersome and inefficient. Furthermore, manual clamping is difficult to adapt to steel pipes of different diameters, resulting in shaking and uneven clamping, which affects grinding accuracy and safety.

Method used

The adjustment mechanism, composed of a micro motor, worm gear, worm wheel, threaded rod, and other components, automatically adjusts the position and width of the grinding mechanism. Combined with the automatic clamping structure, it can adapt to steel pipes of different lengths and diameters. The stability and clamping uniformity are improved by the use of arc-shaped anti-slip pads and rubber pads.

Benefits of technology

It achieves automated adjustment of grinding position and clamping, improving grinding efficiency and precision for different steel pipes, avoiding steel pipe deformation and shaking, and enhancing safety and quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of polishing devices, and discloses a polishing device for steel pipe manufacturing and machining, which comprises a base, the top of the base is fixedly connected with a hollow plate, the inner side wall of the hollow plate is fixedly connected with a first motor, and the output end of the first motor is in spline connection with a first transmission rod. And one end of the first transmission rod is fixedly connected with a first bevel gear, and the surface of the first bevel gear is engaged with a second bevel gear. According to the polishing device for steel pipe manufacturing and machining, through an adjusting mechanism composed of a micro motor, a worm, a worm gear, a threaded rod and other components and a distance adjusting structure composed of a rotating disc and a second double-end threaded rod, the front-back position and the polishing width of the polishing mechanism can be automatically and rapidly adjusted, and manual frequent adjustment of the position of a steel pipe or replacement of a polishing tool is not needed; and the grinding efficiency of steel pipes with different lengths and outer diameters is greatly improved, and the device is particularly suitable for batch production scenes.
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Description

Technical Field

[0001] This utility model relates to the field of grinding device technology, and in particular to a grinding device for steel pipe manufacturing and processing. Background Technology

[0002] Grinding is a key process in steel pipe manufacturing. Using tools such as grinding wheels and sandpaper, or equipment such as centerless grinders and belt sanders, burrs, oxide scale, weld excess and defects are removed from the surface of the steel pipe, improving surface smoothness and dimensional accuracy. At the same time, it serves as a pretreatment for subsequent processes such as anti-corrosion coating and welding, ensuring that the quality of the steel pipe meets the requirements for use. It is widely used in steel pipe production processes in fields such as petrochemicals, machinery manufacturing, and construction.

[0003] However, existing grinding equipment for steel pipe manufacturing and processing has the following disadvantages:

[0004] (1) The grinding mechanism of the existing equipment is mostly fixed, and the position of the steel pipe needs to be manually adjusted or the grinding tool needs to be changed to adapt to steel pipes of different lengths or outer diameters. The operation is cumbersome and time-consuming, especially for mass production scenarios, the inefficiency is significant.

[0005] (2) When grinding steel pipes, manual clamping is often used, which is difficult to adapt to the rapid positioning of steel pipes of different diameters. Furthermore, uneven clamping force can easily cause steel pipe deformation or shaking during grinding, affecting grinding accuracy and safety.

[0006] Therefore, this utility model provides a grinding device for steel pipe manufacturing and processing. Utility Model Content

[0007] (a) Technical problems to be solved

[0008] The problem solved by this utility model is to provide a highly practical grinding device for steel pipe manufacturing and processing, which solves the problems mentioned in the background art, such as the grinding mechanism of existing equipment being mostly fixed in position and the manual clamping of steel pipes causing shaking during the grinding process.

[0009] (II) Technical Solution

[0010] To achieve the above objectives, this utility model provides the following technical solution: a grinding device for steel pipe manufacturing and processing, comprising a base, a hollow plate fixedly connected to the top of the base, a first motor fixedly connected to the inner wall of the hollow plate, a first transmission rod splinedly connected to the output end of the first motor, a first bevel gear fixedly connected to one end of the first transmission rod, a second bevel gear meshing with the surface of the first bevel gear, a first double-threaded rod fixedly penetrating the center of the second bevel gear, a movable plate threadedly sleeved on the surface of the first double-threaded rod, one end of the movable plate extending to the outside of the hollow plate, a clamping plate fixedly connected to one end of the movable plate, and a cavity formed inside the base. A micro motor is fixedly connected to the inner bottom wall of the device. The output end of the micro motor is splinedly connected to a second transmission rod. One end of the second transmission rod is fixedly connected to a worm gear. A worm wheel meshes with the surface of the worm gear. A threaded rod is fixedly passed through the center of the worm wheel. A movable column is threadedly sleeved on the surface of the threaded rod. A mounting plate is fixedly connected to the top of the movable column. A second motor is fixedly connected to one side of the mounting plate. The output end of the second motor is splinedly connected to a third transmission rod. One end of the third transmission rod is fixedly connected to a rotating plate. A second double-ended threaded rod is rotatably connected inside the rotating plate. A grinding column is threadedly sleeved on the surface of the second double-ended threaded rod. One end of the second double-ended threaded rod is fixedly connected to a rotating disk.

[0011] Optionally, a first groove is provided on one side of the hollow plate, and the movable plate slides inside the first groove, and can only move in a straight line along a set direction to avoid deviation or shaking during the movement.

[0012] Optionally, the top of the base is provided with a second sliding groove, and the moving column slides inside the second sliding groove. The second sliding groove guides and limits the moving column, so that the moving column can move stably in the horizontal direction under the drive of the threaded rod.

[0013] Optionally, an anti-slip pad is fixedly connected to one side of the clamping plate. The anti-slip pad is arc-shaped, which can buffer the pressure of the clamping plate on the steel pipe, prevent the surface of the steel pipe from being damaged by clamping, protect the surface quality of the steel pipe, and help improve the stability of clamping, preventing the steel pipe from shaking during the grinding process and affecting the grinding effect.

[0014] Optionally, four rubber pads are fixedly connected to the bottom of the base to prevent the grinding device from sliding due to vibration or external force during operation, thus ensuring the overall stability of the device during operation.

[0015] Optionally, the inner wall of the cavity is provided with a circular groove, and the threaded rod rotates inside the circular groove to ensure that the threaded rod remains stable during rotation and to reduce its shaking and deviation during rotation.

[0016] (III) Beneficial Effects

[0017] This utility model provides a grinding device for steel pipe manufacturing and processing, which has the following beneficial effects:

[0018] 1. This steel pipe manufacturing and processing grinding device, through an adjustment mechanism composed of a micro motor, worm gear, worm wheel, threaded rod, etc., and a spacing adjustment structure composed of a rotating disk and a second double-headed threaded rod, can automatically and quickly adjust the front and rear position and grinding width of the grinding mechanism. It eliminates the need for frequent manual adjustment of the steel pipe position or replacement of grinding tools, greatly improving the grinding efficiency of steel pipes of different lengths and outer diameters, and is especially suitable for mass production scenarios.

[0019] 2. The grinding device for steel pipe manufacturing and processing adopts an automatic clamping structure driven by a first motor. The clamping plates move synchronously and parallel through the first double-headed threaded rod. With the help of the arc-shaped anti-slip pad, it can adapt to the rapid positioning of steel pipes of different diameters and the clamping force is uniform. It effectively avoids the deformation or shaking of the steel pipe caused by improper clamping during the grinding process, significantly improves the grinding accuracy and operation safety, and ensures the processing quality of the steel pipe. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the overall side view structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the first double-ended threaded rod structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the threaded rod structure of this utility model.

[0024] In the diagram: 1. Base; 2. Hollow plate; 3. First motor; 4. First bevel gear; 5. Second bevel gear; 6. First double-ended threaded rod; 7. Moving plate; 8. Clamping plate; 9. Micro motor; 10. Worm gear; 11. Worm wheel; 12. Threaded rod; 13. Moving column; 14. Mounting plate; 15. Second motor; 16. Rotating plate; 17. Second double-ended threaded rod; 18. Grinding column; 19. Anti-slip pad; 20. Rotating disk. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0026] Please see Figures 1 to 4 This utility model provides a technical solution: a grinding device for steel pipe manufacturing and processing, including a base 1, a hollow plate 2 fixedly connected to the top of the base 1, a first motor 3 fixedly connected to the inner wall of the hollow plate 2, a first transmission rod splinedly connected to the output end of the first motor 3, a first bevel gear 4 fixedly connected to one end of the first transmission rod, a second bevel gear 5 meshing with the surface of the first bevel gear 4, forming a bevel gear transmission pair to realize the change of power direction and transmit torque to a first double-threaded rod 6, the first double-threaded rod 6 being fixedly penetrated through the center of the second bevel gear 5, a movable plate 7 threadedly sleeved on the surface of the first double-threaded rod 6, one end of the movable plate 7 extending to the outside of the hollow plate 2, a clamping plate 8 fixedly connected to one end of the movable plate 7, a cavity opened inside the base 1, a micro motor 9 fixedly connected to the inner bottom wall of the cavity, the micro motor 9 being a DC geared motor MY24GP-370B, a second transmission rod splinedly connected to the output end of the micro motor 9, a worm gear 10 fixedly connected to one end of the second transmission rod. The worm gear 10 has a worm wheel 11 meshing on its surface. A threaded rod 12 is fixedly inserted through the center of the worm wheel 11. A movable column 13 is threadedly sleeved on the surface of the threaded rod 12. A mounting plate 14 is fixedly connected to the top of the movable column 13. A second motor 15 is fixedly connected to one side of the mounting plate 14. Both the first motor 3 and the second motor 15 are Y160M1-2 models. A third transmission rod is splinedly connected to the output end of the second motor 15. A rotating plate 16 is fixedly connected to one end of the third transmission rod. A second double-ended threaded rod 17 is rotatably connected inside the rotating plate 16. By rotating, the grinding columns 18 on both sides move synchronously towards the center or outward, adjusting the distance between the grinding columns 18 and the surface of the steel pipe to adapt to steel pipes of different outer diameters or grinding depth requirements. The grinding columns 18 are threadedly sleeved on the surface of the second double-ended threaded rod 17. A rotating disk 20 is fixedly connected to one end of the second double-ended threaded rod 17. Manually rotating the rotating disk 20 can drive the second double-ended threaded rod 17 to rotate, making it convenient for operators to finely adjust the position of the grinding columns 18 as needed, improving flexibility.

[0027] A first groove is provided on one side of the hollow plate 2. The movable plate 7 slides inside the first groove and can only move in a straight line along the set direction to avoid deviation or shaking during the movement.

[0028] The top of the base 1 is provided with a second sliding groove, and the moving column 13 slides inside the second sliding groove. The second sliding groove guides and limits the moving column 13, so that the moving column 13 can move stably in the horizontal direction under the drive of the threaded rod 12.

[0029] An anti-slip pad 19 is fixedly connected to one side of the clamping plate 8. The anti-slip pad 19 is arc-shaped, which can buffer the pressure of the clamping plate 8 on the steel pipe, prevent the surface of the steel pipe from being damaged by clamping, protect the surface quality of the steel pipe, and help improve the stability of clamping, preventing the steel pipe from shaking during the grinding process and affecting the grinding effect.

[0030] The bottom of the base 1 is fixedly connected with four rubber pads to prevent the grinding device from sliding due to vibration or external force during operation, and to ensure the overall stability of the device during operation.

[0031] The inner wall of the cavity is provided with a circular groove, and the threaded rod 12 rotates inside the circular groove to ensure that the threaded rod 12 remains stable during rotation and to reduce its shaking and deviation during rotation.

[0032] In this invention, the working steps of the device are as follows:

[0033] First step: When it is necessary to grind the steel pipe, first start the first motor 3. The output end of the first motor 3 drives the first transmission rod to rotate, which in turn causes the first bevel gear 4 to rotate. The second bevel gear 5, which meshes with it, rotates accordingly. The rotation of the second bevel gear 5 drives the first double-threaded rod 6 to rotate. Since the threads at both ends of the first double-threaded rod 6 turn in opposite directions, when it rotates, the moving plate 7 with the surface thread sleeve will move synchronously towards each other under the guidance of the first sliding groove, thereby driving the clamping plate 8 to open and close, quickly and firmly clamping steel pipes of different diameters.

[0034] The second step: Start the micro motor 9. The micro motor 9 drives the worm gear 10 to rotate through the second transmission rod. The worm wheel 11 meshing with the worm gear 10 rotates accordingly. The rotation of the worm wheel 11 causes the threaded rod 12 to rotate, which in turn drives the moving column 13 to slide up and down in the second slide groove, thereby moving the mounting plate 14 and adjusting the position of the grinding mechanism so that the grinding column 18 is adapted to the position of the steel pipe. Then, by rotating the rotating disk 20, the second double-headed threaded rod 17 is rotated to adjust the spacing of the grinding columns 18 to adapt to different outer diameters of the steel pipe. When the grinding column 18 is adjusted to contact the inner or outer wall of the steel pipe, start the second motor 15. The second motor 15 drives the third transmission rod to rotate, causing the rotating plate 16 to rotate at high speed, which in turn drives the grinding column 18 to rotate, thus performing grinding operations on the surface of the steel pipe.

[0035] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0036] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grinding device for steel pipe manufacturing and processing, comprising a base (1), characterized in that: A hollow plate (2) is fixedly connected to the top of the base (1). A first motor (3) is fixedly connected to the inner wall of the hollow plate (2). A first transmission rod is splined to the output end of the first motor (3). A first bevel gear (4) is fixedly connected to one end of the first transmission rod. A second bevel gear (5) meshes with the surface of the first bevel gear (4). A first double-threaded rod (6) is fixedly passed through the center of the second bevel gear (5). A moving plate (7) is threaded onto the surface of the first double-threaded rod (6). One end of the moving plate (7) extends to the outside of the hollow plate (2). A clamping plate (8) is fixedly connected to one end of the moving plate (7). A cavity is opened inside the base (1). A micro motor (9) is fixedly connected to the inner bottom wall of the cavity. A second transmission rod is splined to the output end of the micro motor (9). The moving rod has a worm gear (10) fixedly connected to one end of the second transmission rod. A worm wheel (11) meshes with the surface of the worm gear (10). A threaded rod (12) is fixedly inserted through the center of the worm wheel (11). A moving column (13) is threadedly sleeved on the surface of the threaded rod (12). A mounting plate (14) is fixedly connected to the top of the moving column (13). A second motor (15) is fixedly connected to one side of the mounting plate (14). A third transmission rod is splinedly connected to the output end of the second motor (15). A rotating plate (16) is fixedly connected to one end of the third transmission rod. A second double-ended threaded rod (17) is rotatably connected inside the rotating plate (16). A grinding column (18) is threadedly sleeved on the surface of the second double-ended threaded rod (17). A rotating disk (20) is fixedly connected to one end of the second double-ended threaded rod (17).

2. The grinding device for steel pipe manufacturing and processing according to claim 1, characterized in that: The hollow plate (2) has a first groove on one side, and the movable plate (7) slides inside the first groove.

3. The grinding device for steel pipe manufacturing and processing according to claim 1, characterized in that: The base (1) has a second sliding groove on its top, and the movable column (13) slides inside the second sliding groove.

4. The grinding device for steel pipe manufacturing and processing according to claim 1, characterized in that: An anti-slip pad (19) is fixedly connected to one side of the clamp (8), and the anti-slip pad (19) is arc-shaped.

5. The grinding device for steel pipe manufacturing and processing according to claim 1, characterized in that: The bottom of the base (1) is fixedly connected with four rubber pads.

6. The grinding device for steel pipe manufacturing and processing according to claim 1, characterized in that: The inner wall of the cavity is provided with a circular groove, and the threaded rod (12) rotates inside the circular groove.